/* sha512.h
 *
 * Copyright (C) 2006-2014 wolfSSL Inc.
 *
 * This file is part of CyaSSL.
 *
 * CyaSSL is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * CyaSSL is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 */


#ifndef CTAO_CRYPT_SHA512_H
#define CTAO_CRYPT_SHA512_H

#include <stdint.h>

#ifndef W64LIT
#define WORD64_AVAILABLE
#define W64LIT(x) x##LL
#endif

#include "crypto/integer.h"

/* in bytes */
enum {
    SHA512_BLOCK_SIZE   = 128,
    SHA512_DIGEST_SIZE  =  64,
    SHA512_PAD_SIZE     = 112 
};


/* SHA512 digest */
typedef struct SHA512 {
    word32  buffLen;   /* in bytes          */
    word32  loLen;     /* length in bytes   */
    word32  hiLen;     /* length in bytes   */
    word64  digest[SHA512_DIGEST_SIZE / sizeof(word64)];
    word64  buffer[SHA512_BLOCK_SIZE  / sizeof(word64)];
} SHA512;


int SHA512Init(SHA512 *);
int SHA512Update(SHA512 *, const byte *, word32);
int SHA512Final(SHA512 *, byte *);
int SHA512Hash(const byte *, word32, byte *);

#endif /* CTAO_CRYPT_SHA512_H */